<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>v-show指令</title>
  </head>
  <body>
    <!-- v-show: 控制显示和隐藏 -->
    <div id="app">
      <input type="button" @click="AddAge" value="累加年龄" />
      <input type="button" @click="ChangeIsShow" value="切换显示状态" />
      <img src="./img/图片1.gif" v-show="isShow" />
      <img src="./img/图片1.gif" v-show="age>=18" />
    </div>
    <!-- 开发环境版本，包含了有帮助的命令行警告 -->
    <script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>
    <script>
      var app = new Vue({
        el: "#app",
        data: {
          isShow: false,
          age: 15,
        },
        methods: {
          ChangeIsShow: function () {
            this.isShow = !this.isShow;
          },
          AddAge: function () {
            this.age++;
          },
        },
      });
    </script>
  </body>
</html>
